WHAT IT ANSWERS
这张表适合回答什么
- 按证券和时间查询统一事件
- 合并新闻申报与公司事件
- 构建事件驱动特征
DATASET · event
event.stream
将多来源事件标准化为统一 event_id、事件时间、来源、实体和分类,是跨来源事件查询的主入口。
event_tsWHAT IT ANSWERS
GRAIN & TIME
KEY FIELDS
event_idevent_tsRECOMMENDED JOINS
该表主要按自身业务键使用,目前没有推荐的跨表主键联接。
HOW TO QUERY SAFELY
先用 catalog 确认当前契约;可按 catalog 中列出的 filters 进一步缩小范围;单页最多 5000 行,响应有 has_more 时原样传回 next_cursor 继续分页。
MACHINE CONTRACT
event_ts, source, event_id—canonical_final_activeevent_code→ event_code · stringregime→ regime · stringsource→ source · stringPOINT IN TIME
该资产没有 PIT 契约。普通 rows 端点仍按当前公开读模式返回数据;不要把它表述成历史时点快照。
COPY-READY CALLS
同一数据集可用 HTTP、Python SDK、CLI 或 MCP;Key 始终只通过环境变量/Bearer Header 传递。
curl --fail-with-body -H "Authorization: Bearer $FRIENDS_DATA_API_KEY" "https://api.alphahubs.uk/api/v1/data/datasets/event/stream/rows?limit=100&event_code=EVENT_CODE"from friends_data_api import FriendsDataClient, Settings
async with FriendsDataClient(Settings.from_env()) as client:
page = await client.get_dataset_rows('event', 'stream', limit=100, filters={'event_code': 'EVENT_CODE'})
print(page.data)
if page.has_more:
print("next cursor:", page.next_cursor)friends-data get-dataset-rows event stream --limit 100 --filter event_code=EVENT_CODE{
"arguments": {
"dataset": "stream",
"filters": {
"event_code": "EVENT_CODE"
},
"limit": 100,
"namespace": "event"
},
"tool": "get_dataset_rows"
}FIELD DICTIONARY
descriptionSource 可在 JSON 中区分仓库注释、标准术语表和名称推导说明。
| # | 字段 | ClickHouse 类型 | JSON | 可空 | 角色 | 说明 |
|---|---|---|---|---|---|---|
| 1 | event_id | String | string | no | default_order, warehouse_primary_key | Stable identifier of the normalized event.标准术语表 |
| 2 | event_tsUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | time, default_order, warehouse_primary_key | UTC timestamp of the normalized event.标准术语表 |
| 3 | event_code | LowCardinality(String) | string | no | filter | Source-normalized field: event code.名称推导 |
| 4 | severity | Nullable(Int16) | integer | yes | value | Source-normalized field: severity.名称推导 |
| 5 | severity_reason | String | string | no | value | Source-normalized field: severity reason.名称推导 |
| 6 | source | LowCardinality(String) | string | no | filter, default_order, warehouse_primary_key, provenance | Normalized upstream source identifier.标准术语表 |
| 7 | title | String | string | no | value | Human-readable title supplied or normalized from the source.标准术语表 |
| 8 | body | String | string | no | value | Source-normalized field: body.名称推导 |
| 9 | summary | String | string | no | value | Source-normalized field: summary.名称推导 |
| 10 | url | String | string | no | value | Canonical URL attached to the record.标准术语表 |
| 11 | entities | String | string | no | value | Source-normalized field: entities.名称推导 |
| 12 | sentiment | Nullable(Float64) | number | yes | value | Source-normalized field: sentiment.名称推导 |
| 13 | confidence | Nullable(Float64) | number | yes | value | Source-normalized field: confidence.名称推导 |
| 14 | surprise_score | Nullable(Float64) | number | yes | value | Source-normalized field: surprise score.名称推导 |
| 15 | surprise_reason | String | string | no | value | Source-normalized field: surprise reason.名称推导 |
| 16 | regime | LowCardinality(String) | string | no | filter | Source-normalized field: regime.名称推导 |
| 17 | signals_inferred | String | string | no | value | Source-normalized field: signals inferred.名称推导 |
| 18 | metadata | String | string | no | value | Source-normalized field: metadata.名称推导 |
| 19 | provider | LowCardinality(String) | string | no | provenance | Upstream data provider identifier.标准术语表 |
| 20 | source_url | String | string | no | provenance | URL of the upstream evidence or record when distributable.标准术语表 |
| 21 | source_record_id | String | string | no | provenance | Provider-side identifier for the source record.标准术语表 |
| 22 | raw_payload_hash | String | string | no | provenance | Opaque fingerprint of the normalized source payload for provenance checks.标准术语表 |
| 23 | parser_version | LowCardinality(String) | string | no | provenance | Version of the parser or normalizer that produced the row.标准术语表 |
| 24 | quality_status | LowCardinality(String) | string | no | provenance | Machine-readable data-quality classification.标准术语表 |
| 25 | license_scope | LowCardinality(String) | string | no | provenance | License or redistribution scope attached to the row.标准术语表 |
| 26 | visibility_tier | LowCardinality(String) | string | no | provenance | Serving visibility tier attached to the row.标准术语表 |
| 27 | ingest_run_id | String | string | no | provenance | Identifier of the ingestion run that produced the row.标准术语表 |
| 28 | version | UInt64 | integer | no | provenance | Monotonic row version used for correction-aware reads.标准术语表 |
| 29 | is_deleted | UInt8 | integer | no | value | Soft-delete marker; public serving excludes current tombstones.标准术语表 |
| 30 | created_atUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | value | UTC timestamp when the warehouse row was first created.标准术语表 |
| 31 | updated_atUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | value | UTC timestamp when the warehouse row was last updated.标准术语表 |
换一个字段名、类型或角色。
结构来自 Friends 只读身份可见的真实 serving relation;权限、过滤、排序、PIT 与分页来自可执行 DatasetSpec。Schema observed at 2026-10-06T18:08:52Z。